I have a 2.7diesel grand cherokee 2002 i have to disconect the live battery lead and reconect it every morning and it then starts ok for the rest of the day.

I can only suggest: 1: first replace both remotes batteries.
2: disconect the battery in the vehicle and then reconnect:
3: reprogramme the remotes following the insructions in the manual.

Hi Danny, I would have both the vehicle and the remote fob batteries checked and if required, replaced. Cold weather can and does show up problems with batteries. It would also be a good idea to have a diagnostic scan carried out on your vehicle, just to be on the safe side. Regards John

try disconecting battery positive lead leave off for 2 mins make sure you have ign key in your pocket as car can lock when you reconnect battery, reconect battery terminal, With key remote ,lock car unlock car, try starting now.if this works thn all you have done is rebooted the onboard computer system.iff not check battery voltage,does it need recharging.

battery could be at fault or there is a draw in system that pulls down battery
have battery tested and leave it disconected for a few days then reconect to see if vehicle starts
if it does battery should be o.k. next is there any thing that stayes on (aftermarket stuff)
that may cause a draw on system if thats ok need to performed parasetic draw on system
hook up voltage meter between positive cable and meter
on 20 volt schale put red wire of meter to battery positive post black wire to red wire that was hook to battery voltaged should be minimal only to keep computers alive (clock - radio preset-etc etc)
if draw is high start removing fuses in system one at a time and check the voltage meter until it drops
you have now located the faulty cicuit that that fuse feeds start looking in those area
also feel starter selenoid and alternator at rear to see if they feel warm thet could be partly switch on
killing the battery over time
good luck

That means that you have a current problem with the car, the best solution is having someone plug a scanner.

disconect battery for a minute then reconect but if you do not repair the fault that turn it on it will come back on! it isn't going away until you repair the fault good luck,John

• disconect battery for 30 seconds, reconect.
• try to start car, leaving key on for 10 minutes or untill security light stops blinking.
• Turn key off

then try to start car. if this doesnt work repeat procedure.
Hope this helps

disconect the negative battery lead for a few seconds and reconect

disconect the battery for about 15 minutes and turn the head lights on after bat is disconected and then turn head lights off reconect bat and this should reset your alarm system.

Sounds like alternator.Get it started then disconnect one lead from battery and see if it still runs. If not, then have your alternator checked.